JP6692938B2 - Wear determination device and electronic device - Google Patents

Description

  The present invention relates to a mounting determination device and electronic equipment using the same.

Patent Document 1 discloses a technique for suppressing power consumption in a battery-driven electronic device when not in use.
In the sleep mode, the electronic device detects whether or not the user's hand approaches, and activates when it determines that the user's hand approaches.
Further, Patent Document 1 also discloses that a wake-up process is performed when acceleration is detected in the sleep mode.

Japanese Patent Laid-Open No. 2004-240971

  However, as disclosed in Patent Document 1 described above, when the wake-up process from the sleep is performed only by the proximity determination or the attachment determination of the user, the proximity or attachment determination having a relatively large power consumption is continued during the sleep period. Power consumption is high. In addition, when a conductor other than the living body approaches or contacts, unnecessary wake-up processing may be performed.

  On the other hand, when the wake-up process is started only when acceleration is generated in the electronic device, the wake-up process is performed when the electronic device is vibrated while the electronic device is not attached to the living body. Will end up.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a mounting determination device capable of accurately determining whether or not an electronic device is mounted, and an electronic device capable of achieving power saving using the mounting determination device. With the goal.

In order to solve the above-mentioned problems of the conventional technology and achieve the above-mentioned object, the biological information measuring device of the present invention is attached to a living body, and measures the biological information based on an electric signal from the living body. A device , which has an acceleration sensor and a living body contact part that comes into contact with a living body, and a contact sensor that generates a signal according to the contact between the living body contact part and the living body, and signals from the acceleration sensor and the contact sensor. Based on, a wear determination unit that determines whether the living body contact unit is in contact with a living body, and an exercise that performs a motion analysis process of the wearer of the biological information measuring device based on a signal from the acceleration sensor. It has an analysis unit and a communication unit having a communication function for transmitting a result of the motion analysis process of the motion analysis unit, and the acceleration sensor outputs a first interrupt signal when detecting acceleration, and Contact sensor Fine said mounting determination unit, in response to said first interrupt signal by the acceleration sensor has output, have rows wakeup process shifts itself from the sleep mode to the wake-up mode, the attachment check unit, the wake-up After processing, based on a signal from the acceleration sensor or the contact sensor, it is determined whether the biological contact unit is in contact with a living body, and in the case of a positive determination, the motion analysis unit and the communication unit are put to sleep. A wake-up process for shifting from the mode to the wake-up mode is performed .

According to this configuration, when the acceleration sensor detects the acceleration, the contact sensor and the wearing determination unit wake up, so that the contact sensor and the wearing determination unit are in the sleep mode while the acceleration sensor does not detect the acceleration. Therefore, power saving can be achieved.
Further, according to this configuration, in addition to the detection of the acceleration by the acceleration sensor, the wearing determination can be performed by the wearing determination unit. Therefore, the wake of other circuit blocks is conditioned on the condition that it is determined that the living body is worn. Up processing can be performed, and it is possible to avoid performing wake up processing of the circuit block in the non-attached state. This can also save power.
Moreover, according to this configuration, it is possible to perform the wake-up process of the circuit block under the condition that the acceleration is detected by the acceleration sensor, in addition to the attachment determination, and the conductor other than the living body touches the living body contact portion. Thus, it is possible to avoid unnecessary wakeup processing. This can also save power.

Preferably, the acceleration sensor outputs the first interrupt signal when the acceleration is generated in a state where the acceleration is not generated for a certain period of time.

  Suitably, the said attachment determination part performs the sleep process which transfers itself from a wake-up mode to a sleep mode, when it determines with the said biological contact part not contacting the biological body.

  With this configuration, the mounting determination unit can be put into the sleep mode in the non-mounted state, and power saving can be achieved.

Suitably, the mounting determination unit outputs a fourth interrupt signal when determining that the biological contact unit is not in contact with the biological body, and the motion analysis unit and the communication unit are configured to perform the fourth interrupt. In response to the signal, sleep processing is performed to shift itself from the wake-up mode to the sleep mode.

Preferably, the acceleration sensor outputs a second interrupt signal when the acceleration is not detected for a certain period of time, and the contact sensor , the wearing determination unit , the motion analysis unit, and the communication unit include the second interrupt signal. In response to the interrupt signal, sleep processing is performed to shift itself from the wake-up mode to the sleep mode.

According to this configuration, when the acceleration is not detected for a certain period of time, the contact sensor , the wearing determination unit , the motion analysis unit, and the communication unit enter the sleep mode. Thereby, power saving can be achieved.

  Preferably, the power consumption of the acceleration sensor is smaller than the power consumption of the contact sensor and the wearing determination unit in the wake-up mode.

  With this configuration, the contact sensor and the attachment determination unit, which consume relatively large power, can be put into the sleep mode.

  Preferably, the power consumption of the mounting determination unit in the wakeup mode is smaller than the power consumption of the predetermined circuit block in the wakeup mode.

  According to this configuration, the circuit block that consumes a relatively large amount of power can be placed in the sleep mode.

  The electronic device of the present invention is an electronic device to be mounted on a living body, and has a mounting determination device, and the mounting determination device has an acceleration sensor and a biological contact portion that contacts the biological body, and the biological contact portion. A contact sensor that generates a signal according to contact with the living body, and a mounting determination unit that determines whether or not the living body contact portion is in contact with the living body based on signals from the acceleration sensor and the contact sensor. When the acceleration sensor detects acceleration, the acceleration sensor outputs a first interrupt signal, and the contact sensor and the wearing determination unit themselves respond to the first interrupt signal output by the acceleration sensor. Wake-up processing to shift the sleep mode to the wake-up mode is performed.

According to this configuration, when the acceleration sensor detects the acceleration, the contact sensor and the wearing determination unit wake up, so that the contact sensor and the wearing determination unit are in the sleep mode while the acceleration sensor does not detect the acceleration. Therefore, power saving can be achieved.
Further, according to this configuration, in addition to the acceleration detection by the acceleration sensor, the attachment determination unit can determine the attachment, so that the electronic device is mounted on the condition that it is attached to the living body. The wake-up process of the circuit block can be performed, and the wake-up process of the circuit block in the non-attached state can be avoided. This can also save power.
Moreover, according to this configuration, it is possible to perform the wake-up process of the circuit block under the condition that the acceleration is detected by the acceleration sensor, in addition to the attachment determination, and the conductor other than the living body touches the living body contact portion. Thus, it is possible to avoid unnecessary wakeup processing. This can also save power.

  ADVANTAGE OF THE INVENTION According to this invention, the mounting determination apparatus which can determine correctly whether the electronic device was mounted | worn, and the electronic device which can achieve power saving using the same can be provided.

It is a block diagram of the biological information measuring device of embodiment of this invention. FIG. 2 is a functional block diagram of a control system of the biological information measuring device shown in FIG. 1. 6 is a flowchart for explaining a wakeup process of the biological information measuring device shown in FIG. 1. 4 is a flowchart for explaining a main wakeup process of step ST5 shown in FIG. 6 is a flowchart for explaining a sleep process of the biological information measuring device shown in FIG. 1.

(overall structure)
Hereinafter, the biological information measuring device according to the embodiment of the present invention will be described. FIG. 1 is a configuration diagram of a biological information measuring device 100 according to an embodiment of the present invention. The biological information measuring device 100 includes a control device 110, a C pad 111C, an L pad 111L, an R pad 111R, a C wiring 112C, an L wiring 112L, and an R wiring 112R.

  The C pad 111C includes a flat plate-shaped C insulator 113C and a flat plate-shaped first electrode 211C (also referred to as a common electrode, which may be hereinafter referred to as a C electrode 211C) attached to one surface of the C insulator 113C. including. The L pad 111L includes a flat plate-shaped L insulator 113L and a left second electrode 211L (hereinafter, also referred to as an L electrode 211L) attached to one surface of the L insulator 113L. The R pad 111R includes a plate-shaped R insulator 113R and a right second electrode 211R (hereinafter, also referred to as an R electrode 211R) attached to one surface of the R insulator 113R. Hereinafter, the C electrode 211C, the L electrode 211L, and the R electrode 211R may be referred to as the electrode 211 without being distinguished from each other. Each of the electrodes 211 is formed of a conductive member such as metal, and is exposed to the outside so that it can come into contact with a living body.

  The control device 110 accommodates components that form an electric system described later. The C wiring 112C connects the control device 110 and the C electrode 211C. The L wiring 112L connects the control device 110 and the L electrode 211L. The R wiring 112R electrically connects the control device 110 and the R electrode 211R.

  The biological information measuring device 100 performs biological information measurement for measuring biological information based on an electric signal from the living body and mounting state detection for detecting a mounting state of one or more electrodes 211 on the living body. The living body is, for example, a human body. The biological information is, for example, an electrocardiogram. The biological information measuring device 100 operates with the power of a built-in battery (not shown).

  The C electrode 211C, the L electrode 211L, and the R electrode 211R are arranged on the skin near the heart of the human body. The C electrode 211C is arranged closest to the heart between the L electrode 211L and the R electrode 211R. When properly attached to the living body, the L electrode 211L and the R electrode 211R are symmetrically arranged with the C electrode 211C as the center. The voltage waveform between the C electrode 211C and the L electrode 211L is detected. Further, the voltage waveform between the C electrode 211C and the R electrode 211R is detected. The difference between the two detected voltage waveforms represents the electrocardiographic information of the human body.

(Control system configuration)
FIG. 2 is a functional block diagram of a control system of the biological information measuring device 100 shown in FIG.
As shown in FIG. 1, the biological information measuring device 100 includes, for example, an acceleration sensor 11, a biological contact sensor 13, a wearing determination unit 21, a motion analysis unit 23, a communication unit 25, a peripheral circuit 27, a control unit 29, and a power supply unit. Has 31.

  The acceleration sensor 11, the biological contact sensor 13, and the wearing determination unit 21 constitute the wearing determination device 1 according to the embodiment of the present invention.

The acceleration sensor 11 is mounted on, for example, the control device 100 shown in FIG. The acceleration sensor 11 generates an acceleration signal. Further, when the acceleration sensor 11 detects the acceleration in a state where the acceleration is not generated for a certain period of time, the acceleration sensor 11 outputs the first interrupt signal S1 to the control unit 29.
The control unit 29 outputs a first interrupt signal S11 corresponding to the first interrupt signal S1 to the biological contact sensor 13 and the attachment determination unit 21.

If the acceleration sensor 11 does not detect the acceleration for a certain period from the state of detecting the acceleration, the acceleration sensor 11 outputs the second interrupt signal S2 to the control unit 29.
The control unit 29 outputs a second interrupt signal S21 corresponding to the second interrupt signal S2 to the biological contact sensor 13 and the attachment determination unit 21.

  The biological contact sensor 13 has a C pad 111C, an L pad 111L, and an R pad 111R shown in FIG. 1, which are biological contact parts that come into contact with a living body. In addition, the biological contact sensor 13 includes a signal applying unit (not shown) and a signal amplifying unit (not shown).

The biological contact sensor 13 can select a wake-up mode that detects the electrical characteristics of the biological contact part and a sleep mode that consumes less power than the wake-up mode.
When the first interrupt signal S11 is input from the control unit 29 in the sleep mode, the biological contact sensor 13 performs its own wake-up process and shifts to the wake-up mode.
When the second interrupt signal S21 is input from the control unit 29 in the wake-up mode, the biological contact sensor 13 performs its own sleep process and shifts to the sleep mode.

The attachment determination unit 21 determines whether or not the biological information measuring device 100 is attached to the living body in the wake-up mode based on the signal from the biological contact sensor 13.
The mounting determination unit 21 determines that the biological information measuring device 100 is mounted on the living body, and when the motion analysis unit 23, the communication unit 25, and the peripheral circuit 27 are in the sleep mode, the mounting determination unit 21 notifies the control unit 29 of a third interrupt signal. Send S3. The control unit 29 outputs a third interrupt signal S31 corresponding to the third interrupt signal S3 to the motion analysis unit 23, the communication unit 25, and the peripheral circuit 27, and these perform their own wakeup processing.

  The mounting determination unit 21 may perform the mounting determination by using the signal from the acceleration sensor 11 in addition to the signal from the biological contact sensor 13. Here, in the wearing determination, the signal from the biological contact sensor 13 can be determined with higher accuracy than the acceleration signal from the acceleration sensor 11.

  In addition, the attachment determination unit 21 outputs the fourth interrupt signal S4 to the control unit 29 when determining that the biological information measuring device 100 is not attached to the living body. The control unit 29 outputs a fourth interrupt signal S41 corresponding to the fourth interrupt signal S4 to the motion analysis unit 23, the communication unit 25, and the peripheral circuit 27. Thereby, the motion analysis unit 23, the communication unit 25, and the peripheral circuit 27 perform their own sleep processing.

  Further, the power consumption of the biological contact sensor 13 and the attachment determination unit 21 in the wake-up mode is larger than the power consumption of the acceleration sensor 11.

The motion analysis unit 23 performs a motion analysis process of the wearer of the biological information measuring device 100 based on the signals from the acceleration sensor 11 and the biological contact sensor 13.
When the motion analysis unit 23 receives the third interrupt signal S31 from the control unit 29, the motion analysis unit 23 performs its own wake-up process. Further, when the motion analysis unit 23 receives the fourth interrupt signal S41 from the control unit 29, the motion analysis unit 23 performs its own sleep process.

The communication unit 25 has a communication function of transmitting the wearing determination result of the wearing determination unit 21 and the exercise analysis result of the exercise analysis unit 23 to a predetermined communication device.
When the communication unit 25 receives the third interrupt signal S31 from the control unit 29, the communication unit 25 performs its own wake-up process. Further, when the communication unit 25 receives the fourth interrupt signal S41 from the control unit 29, the communication unit 25 performs its own sleep process.

The peripheral circuit 27 has a function of performing processing such as monitoring the supply voltage of the power supply unit and enabling the LED indicator to emit light.
When the peripheral circuit 27 receives the third interrupt signal S31 from the controller 29, the peripheral circuit 27 performs its own wake-up process. In addition, when the peripheral circuit 27 receives the fourth interrupt signal S41 from the control unit 29, the peripheral circuit 27 performs its own sleep process.

  Further, the power consumption of the motion analysis unit 23, the communication unit 25, and the peripheral circuit 27 in the wakeup mode is larger than the power consumption of the biological contact sensor 13 and the attachment determination unit 21 in the wakeup mode, but may be the same or small. ..

Hereinafter, an operation example related to the wakeup process and the sleep process of the biological information measuring device 100 will be described.
[Wake-up processing]
FIG. 3 is a flowchart for explaining the wakeup process of the biological information measuring device 100 shown in FIG.
Step ST1:
The acceleration sensor 11 determines whether or not the biological information measuring device 100 has been accelerated for a certain period of time. If the determination is affirmative, the process proceeds to step ST12, and if the determination is negative, the determination is repeated. ..

Step ST2:
The acceleration sensor 11 outputs the first interrupt signal S1 to the control unit 29. Further, the control unit 29 outputs a first interrupt signal S11 corresponding to the first interrupt signal S1 to the biological contact sensor 13 and the attachment determination unit 21.

Step ST3:
When the first interrupt signal S11 is input from the control unit 29 in the sleep mode, the biological contact sensor 13 performs its own wake-up process and shifts to the wake-up mode.
In the sleep mode, when the mounting determination unit 21 receives the first interrupt signal S11 from the control unit 29, the mounting determination unit 21 performs its own wake-up process and shifts to the wake-up mode.
As a result, the attachment determination unit 21 performs the attachment determination process of determining whether the biological information measuring device 100 is attached to the living body based on the signal from the biological contact sensor 13.

Step ST4:
As a result of the mounting determination processing, the mounting determination unit 21 proceeds to step ST5 if the determination is positive that the device is in the mounted state, and proceeds to step ST6 if the determination is negative.

Step ST5:
The mounting determination unit 21 outputs the third interrupt signal S3 to the control unit 29.
The control unit 29 outputs a third interrupt signal S31 corresponding to the third interrupt signal S3 to the motion analysis unit 23, the communication unit 25, and the peripheral circuit 27.
The motion analysis unit 23, the communication unit 25, and the peripheral circuit 27 perform wakeup processing according to the third interrupt signal S31, and shift to the wakeup mode.

Step ST6:
The mounting determination unit 21 performs its own sleep process and shifts to the sleep mode.

FIG. 4 is a flowchart for explaining the main wakeup process of step ST5 shown in FIG.
As shown in FIG. 4, the motion analysis unit 23 performs a wake-up process based on the third interrupt signal S31 from the control unit 29, and shifts to the wake-up mode (step ST11). Thereby, the motion analysis unit 23 performs the motion analysis process of the wearer of the biological information measuring device 100 based on the signals from the acceleration sensor 11 and the biological contact sensor 13.

Next, the communication unit 25 performs the wakeup process based on the third interrupt signal S31 from the control unit 29, and shifts to the wakeup mode (step ST12). Accordingly, the communication unit 25 performs a communication process of transmitting the mounting determination result of the mounting determination unit 21 and the motion analysis result of the motion analysis unit 23 to a predetermined communication device.
Next, the peripheral circuit 27 performs the wakeup process based on the third interrupt signal S31 from the control unit 29, and shifts to the wakeup mode (step ST13).

Step ST6:
The mounting determination unit 21 performs its own sleep process and shifts to the sleep mode.

[Sleep processing]
FIG. 5 is a flowchart for explaining the sleep process of the biological information measuring device 100 shown in FIG.
Step ST21:
If the acceleration sensor 11 determines that acceleration has not been detected for a certain period of time after the acceleration is detected, the process proceeds to step ST22, and if not, the determination is repeated.

Step ST22:
The acceleration sensor 11 outputs the second interrupt signal S2 to the control unit 29.
The control unit 29 outputs a second interrupt signal S21 corresponding to the second interrupt signal S2 to the biological contact sensor 13, the attachment determination unit 21, the motion analysis unit 23, the communication unit 25, and the peripheral circuit 27.

Step ST23:
The biological contact sensor 13, the wearing determination unit 21, the motion analysis unit 23, the communication unit 25, and the peripheral circuit 27 perform sleep processing according to the second interrupt signal S21 and shift to the sleep mode.

  As described above, according to the biological information measuring device 100, when the acceleration sensor 11 detects the acceleration, the biological contact sensor 13 and the wearing determination unit 21 perform the wake-up process, so the acceleration sensor 11 detects the acceleration. While not doing so, the biometric contact sensor 13 and the attachment determination unit 21 can be put into the sleep mode, and power saving can be achieved.

  Further, according to the biological information measuring device 100, in addition to the acceleration detection by the acceleration sensor 11, the biological contact sensor 13 and the mounting determination unit 21 can determine whether or not the living body is mounted. Under the condition, the wake-up process of the motion analysis unit 23, the communication unit 25, and the peripheral circuit 27, which are the other circuit blocks, can be performed, and the wake-up process of the circuit block is avoided in the non-attached state. it can. This can also save power.

  Further, according to the biological information measuring device 100, in addition to the wearing determination by the motion analysis unit 23, the motion analysis unit 23, the communication unit 25, and the peripheral circuit 27 perform the wake-up process on the condition of the acceleration detection by the acceleration sensor 11. It becomes possible to avoid unnecessary wake-up processing by the conductor touching the R electrode 211R, the L electrode 211L, or the C electrode 211C which is the biological contact portion. This can also save power.

  Further, according to the biological information measuring device 100, the attachment determination unit 21 performs the sleep process of shifting itself from the wake-up mode to the sleep mode when the attachment determination unit 21 determines the non-attachment state. As a result, in the non-wearing state, the wear determination unit 21 can be put in the sleep mode, and power saving can be achieved.

  Further, according to the biological information measuring device 100, when the acceleration sensor 11 does not detect the acceleration for a certain period of time, the biological contact sensor 13 and the wearing determination unit 21 wake themselves by outputting a second interrupt signal. Perform sleep processing to shift from up mode to sleep mode. This can also save power.

The present invention is not limited to the above embodiments.
That is, a person skilled in the art may make various changes, combinations, sub-combinations, and substitutions with respect to the constituent elements of the above-described embodiments within the technical scope of the present invention or the equivalent scope thereof.

  For example, in the above-described embodiment, the electronic device of the present invention is exemplified by the eyeglass-type electronic device, but other electronic devices such as a wristband and a watch worn on the human body may be used.

  Further, in the above-described embodiment, the human body is illustrated as the living body, but the same can be applied to the case of being attached to a living body such as an animal such as a pet other than the human body.

  Further, in the above-described embodiment, the case where the biological contact sensor 13 and the attachment determination unit 21 are realized as separate modules is illustrated, but they may be realized as one module.

  Further, in the above-described embodiment, the motion analysis unit 23, the communication unit 25, and the peripheral circuit 27 are illustrated as the circuit blocks of the present invention, but other circuits may be used.

  INDUSTRIAL APPLICABILITY The present invention can be applied to various biological information measuring devices mounted on a living body, for example, biological information measuring devices used for electrocardiographic measurement, electrooculogram measurement, and electromyographic measurement.

1 ... Wear determination device 11 ... Acceleration sensor 13 ... Living body contact sensor 21 ... Wear determination part 23 ... Motion analysis part 25 ... Communication part 27 ... Peripheral circuit 29 ... Control part 31 ... Power supply part 100 ... Biological information measuring device 111C ... C Pad 111L ... L pad 111R ... R pad 113C ... C insulator 113L ... L insulator 113R ... R insulator 211C ... C electrode 211L ... L electrode 211R ... R electrode

Claims (6)

A biological information measuring device that is attached to a living body and measures biological information based on an electric signal from the living body ,
An acceleration sensor,
A contact sensor that has a living body contact portion that comes into contact with the living body and that generates a signal according to the contact between the living body contact portion and the living body,
Based on a signal from the acceleration sensor or the contact sensor, a wearing determination unit that determines whether the biological contact unit is in contact with a living body ,
Based on the signal from the acceleration sensor, a motion analysis unit that performs a motion analysis process of the wearer of the biological information measuring device,
A communication unit having a communication function for transmitting a result of the motion analysis process of the motion analysis unit ,
The acceleration sensor outputs a first interrupt signal when detecting acceleration,
The contact sensor and the attachment check unit, in response to said first interrupt signal by the acceleration sensor has output, have rows wakeup process shifts itself from the sleep mode to the wake-up mode,
The wearing determination unit, after the wake-up process, based on a signal from the acceleration sensor or the contact sensor, determines whether the biological contact unit is in contact with the living body, in the case of a positive determination, the Wake-up processing for shifting the motion analysis unit and the communication unit from the sleep mode to the wake-up mode is performed.
Biological information measuring device . The acceleration sensor outputs the first interrupt signal when the acceleration is generated in a state where the acceleration is not generated for a certain period of time,
The biological information measuring device according to claim 1. Said mounting determination unit, when the living body contact portion is determined not to contact the living body, the biological information measuring apparatus according themselves from wake-up mode to claim 1 or 2 performs the sleep process shifts to the sleep mode .. The wearing determination unit outputs a fourth interrupt signal when determining that the biological contact unit is not in contact with a living body,
The motion analysis unit and the communication unit perform sleep processing for shifting themselves from the wake-up mode to the sleep mode in response to the fourth interrupt signal.
The biological information measuring device according to claim 3 . If the acceleration sensor does not detect acceleration for a certain period of time, it outputs a second interrupt signal,
The said contact sensor , the said mounting | wearing determination part , the said motion analysis part, and the said communication part perform the sleep process which transfers itself from a wake-up mode to a sleep mode according to the said 2nd interruption signal. Biological information measuring device . The biological information measuring device according to claim 1, wherein the power consumption of the acceleration sensor is smaller than the power consumption of the contact sensor and the wearing determination unit in the wake-up mode.

Images